<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8">
		<title>justify-content</title>
		<style type="text/css">
			#box{
				width: 300px;
				height: 200px;
				border: 3px solid red;
				display: flex;
				flex-wrap: wrap;
				justify-content: flex-start;  
			}
			#box div{
				width: 60px;
				height: 60px;
				border: 1px solid blue;
			}
		</style>
	</head>
	<body>
		<div id="box">
			<div>1</div>
			<div>2</div>
			<div>3</div>
			<div>4</div>
			<div>5</div>
			<div>6</div>
			<div>7</div>
		</div>
	</body>
</html>
